[digikam] [Bug 376661] When importing ~200,000 video files Digikam crashes in about 2-5 seconds of starting.

[Mario Frank]

https://bugs.kde.org/show_bug.cgi?id=376661

Mario Frank <mario.frank at uni-potsdam.de> changed:

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                 CC|                            |mario.frank at uni-potsdam.de

--- Comment #14 from Mario Frank <mario.frank at uni-potsdam.de> ---
(In reply to Poz from comment #13)
> Are the thumbnails not readily available to do the fuzzy search on? I know
> they are not the biggest but I think they are big enough, or if there is a
> setting to render them a slightly higher resolution... That is how I
> imagined it would work anyways, since the thumbnails would already be
> generated, half the work is already done to fuzzy search videos...

Hey Poz,

Sadly, it is not this easy.
The fuzzy search creates a signature from images. This does not hold for
videos. Videos are quite more complex as the signature creation must be
uniformly done for all videos. But if videos have black frames in the
beginning, the search would lead to results which are, let's say, rubbish. The
most stable way I see is to take the first frame from every video that is not
plain, i.e. single-coloured. But this means we would have to generate images
until we find the first appropriate frame. This would slow down the
fingerprints generation significantly. 
A stable implementation is not trivial here. I will think about a way more
closely over the weekend. 

Best,
Mario

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